Sagging Sewage Technique Lines-- Filth adjustments can generate your drain line to sag. When this occurs, the section which includes sunk accumulates paper in addition to squander leading to a blockage.????????????? ?? ?? ?????????? ?????? ??? ?????????? ???????? ??? ??????? ???? ???????? ???????? ?? ????? ??? ???? ??? ??? ?? ??? ????????????.?? ??